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Dewis pwnc arall neu clirio pob hidlydd.
Nid yw holl gynnwys y cyfrifia wedi'i ryddhau. Edrychwch am ddatganiadau sydd i ddod ar y calendr datganiadau. Fel arall, gallwch greu set ddata eich fun.
Rhyddhawyd ar: 13 February 2020 | Setiau data
Comparison of proxy levels (where an individual completes the survey, but their responses are provided by another household member) and recontact permission rates, by treatment group.
Rhyddhawyd ar: 20 October 2016 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 10 August 2016 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 05 July 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 07 July 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 05 April 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 02 October 2018 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 04 December 2019 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 20 November 2020 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 03 February 2021 | Gwybodaeth gorfforaethol
